diff --git a/.github/workflows/build-check.yml b/.github/workflows/build-check.yml
index a0987fee..e8866bc6 100644
--- a/.github/workflows/build-check.yml
+++ b/.github/workflows/build-check.yml
@@ -15,11 +15,12 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-    - uses: actions/checkout@v3
-    - name: Set up JDK 11
-      uses: actions/setup-java@v1
-      with:
-        java-version: 11
-        cache: maven
-    - name: Build with Maven
-      run: mvn -B clean package --file pom.xml
+      - uses: actions/checkout@v4
+      - name: Set up JDK 17
+        uses: actions/setup-java@v3
+        with:
+          java-version: 17
+          cache: maven
+          distribution: 'temurin'
+      - name: Build with Maven
+        run: mvn -B clean package --file pom.xml
\ No newline at end of file
diff --git a/pom.xml b/pom.xml
index 0786091c..b14a9849 100644
--- a/pom.xml
+++ b/pom.xml
@@ -100,7 +100,6 @@
         <wiremock.version>3.3.1</wiremock.version>
         <mockito.version>4.2.0</mockito.version>
 
-        <logback.version>1.2.10</logback.version>
         <dropwizard.version>2.1.10</dropwizard.version>
     </properties>
 
@@ -149,12 +148,6 @@
             <groupId>io.dropwizard</groupId>
             <artifactId>dropwizard-jackson</artifactId>
         </dependency>
-        <dependency>
-            <groupId>ch.qos.logback</groupId>
-            <artifactId>logback-classic</artifactId>
-            <version>${logback.version}</version>
-            <scope>test</scope>
-        </dependency>
         <dependency>
             <groupId>org.junit.jupiter</groupId>
             <artifactId>junit-jupiter-api</artifactId>
@@ -190,10 +183,15 @@
                     <release>${java.release.version}</release>
                 </configuration>
             </plugin>
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-surefire-plugin</artifactId>
+                <version>3.0.0-M5</version>
+            </plugin>
             <plugin>
                 <groupId>org.jacoco</groupId>
                 <artifactId>jacoco-maven-plugin</artifactId>
-                <version>0.8.6</version>
+                <version>0.8.8</version>
                 <executions>
                     <execution>
                         <goals>
@@ -227,7 +225,10 @@
             <plugin>
                 <groupId>org.apache.maven.plugins</groupId>
                 <artifactId>maven-javadoc-plugin</artifactId>
-                <version>3.3.0</version>
+                <version>3.6.3</version>
+                <configuration>
+                    <doclint>all,-missing</doclint>
+                </configuration>
                 <executions>
                     <execution>
                         <id>attach-javadocs</id>
@@ -286,6 +287,20 @@
                 </plugins>
             </build>
         </profile>
+        <!-- The following are required for dns cache manipulator.
+        Ref: https://github.com/alibaba/java-dns-cache-manipulator#jvm-settings-for-java-16 -->
+        <profile>
+            <id>add-java-open-options-for-jdk16+</id>
+            <activation>
+                <jdk>[16,)</jdk>
+            </activation>
+            <properties>
+                <argLine>
+                    --add-opens java.base/java.net=ALL-UNNAMED
+                    --add-opens java.base/sun.net=ALL-UNNAMED
+                </argLine>
+            </properties>
+        </profile>
     </profiles>
 
 </project>
diff --git a/ranger-core/src/test/java/io/appform/ranger/core/serviceprovider/ServiceProviderTest.java b/ranger-core/src/test/java/io/appform/ranger/core/serviceprovider/ServiceProviderTest.java
index fe8446e6..cff88392 100644
--- a/ranger-core/src/test/java/io/appform/ranger/core/serviceprovider/ServiceProviderTest.java
+++ b/ranger-core/src/test/java/io/appform/ranger/core/serviceprovider/ServiceProviderTest.java
@@ -100,31 +100,23 @@ protected NodeDataSink<T, TestSerializer<T>> dataSink(Service service) {
 
     @Test
     void testInvalidServiceProvider() {
-        try {
-            new TestServiceProviderBuilder<>()
-                    .withServiceName("test-service")
-                    .withNamespace("test")
-                    .withHostname("localhost-1")
-                    .withPort(9000)
-                    .build();
-        } catch (NullPointerException exception) {
-            Assertions.assertTrue(true, "NPE has been caught");
-        }
+        Assertions.assertThrowsExactly(NullPointerException.class, () -> new TestServiceProviderBuilder<>()
+                .withServiceName("test-service")
+                .withNamespace("test")
+                .withHostname("localhost-1")
+                .withPort(9000)
+                .build());
     }
 
     @Test
     void testInvalidServiceProviderNoHealthCheck() {
-        try {
-            new TestServiceProviderBuilder<>()
-                    .withServiceName("test-service")
-                    .withNamespace("test")
-                    .withHostname("localhost-1")
-                    .withPort(9000)
-                    .withSerializer(new TestSerializerImpl())
-                    .build();
-        } catch (Exception exception) {
-            Assertions.assertTrue(exception instanceof IllegalArgumentException, "Illegal Argument Exception should be thrown");
-        }
+        Assertions.assertThrowsExactly(IllegalArgumentException.class, () ->  new TestServiceProviderBuilder<>()
+                .withServiceName("test-service")
+                .withNamespace("test")
+                .withHostname("localhost-1")
+                .withPort(9000)
+                .withSerializer(new TestSerializerImpl())
+                .build());
     }
 
     @Test
diff --git a/ranger-discovery-bundle/perf/results/io.appform.ranger.discovery.bundle.id.IdGeneratorPerfTest.testGenerate.json b/ranger-discovery-bundle/perf/results/io.appform.ranger.discovery.bundle.id.IdGeneratorPerfTest.testGenerate.json
index 6ae5d183..f19b937b 100644
--- a/ranger-discovery-bundle/perf/results/io.appform.ranger.discovery.bundle.id.IdGeneratorPerfTest.testGenerate.json
+++ b/ranger-discovery-bundle/perf/results/io.appform.ranger.discovery.bundle.id.IdGeneratorPerfTest.testGenerate.json
@@ -4,5 +4,5 @@
   "iterations" : 4,
   "threads" : 1,
   "forks" : 3,
-  "mean_ops" : 639973.1997503598
+  "mean_ops" : 644166.1778513143
 }
\ No newline at end of file
diff --git a/ranger-discovery-bundle/perf/results/io.appform.ranger.discovery.bundle.id.IdGeneratorPerfTest.testGenerateBase36.json b/ranger-discovery-bundle/perf/results/io.appform.ranger.discovery.bundle.id.IdGeneratorPerfTest.testGenerateBase36.json
index 08c716e8..272db000 100644
--- a/ranger-discovery-bundle/perf/results/io.appform.ranger.discovery.bundle.id.IdGeneratorPerfTest.testGenerateBase36.json
+++ b/ranger-discovery-bundle/perf/results/io.appform.ranger.discovery.bundle.id.IdGeneratorPerfTest.testGenerateBase36.json
@@ -4,5 +4,5 @@
   "iterations" : 4,
   "threads" : 1,
   "forks" : 3,
-  "mean_ops" : 501189.9391797681
+  "mean_ops" : 502644.4941310657
 }
\ No newline at end of file
diff --git a/ranger-http-client/src/test/java/io/appform/ranger/client/http/BaseRangerHttpClientTest.java b/ranger-http-client/src/test/java/io/appform/ranger/client/http/BaseRangerHttpClientTest.java
index 0d6f3e38..bdab6924 100644
--- a/ranger-http-client/src/test/java/io/appform/ranger/client/http/BaseRangerHttpClientTest.java
+++ b/ranger-http-client/src/test/java/io/appform/ranger/client/http/BaseRangerHttpClientTest.java
@@ -31,7 +31,6 @@
 import lombok.Getter;
 import lombok.extern.slf4j.Slf4j;
 import lombok.val;
-import org.junit.jupiter.api.AfterEach;
 import org.junit.jupiter.api.BeforeEach;
 import org.junit.jupiter.api.extension.RegisterExtension;
 
@@ -53,7 +52,7 @@ public abstract class BaseRangerHttpClientTest {
             .build();
 
     @BeforeEach
-    public void startTestCluster() throws Exception {
+    public void prepareHttpMocks() throws Exception {
         val testNode = TestNodeData.builder().shardId(1).build();
         val node = ServiceNode.<TestNodeData>builder().host("127.0.0.1").port(80).nodeData(testNode).build();
         node.setHealthcheckStatus(HealthcheckStatus.healthy);
@@ -87,11 +86,6 @@ public void startTestCluster() throws Exception {
         log.debug("Started http subsystem");
     }
 
-    @AfterEach
-    public void stopTestCluster() {
-        log.debug("Stopping http subsystem");
-    }
-
     protected ServiceNodesResponse<TestNodeData> read(final byte[] data) {
         try {
             return getObjectMapper().readValue(data, new TypeReference<ServiceNodesResponse<TestNodeData>>() {});
diff --git a/ranger-http-server/pom.xml b/ranger-http-server/pom.xml
index 3d376174..4989fdb9 100644
--- a/ranger-http-server/pom.xml
+++ b/ranger-http-server/pom.xml
@@ -21,11 +21,6 @@
             <groupId>io.dropwizard</groupId>
             <artifactId>dropwizard-core</artifactId>
         </dependency>
-        <dependency>
-            <groupId>ch.qos.logback</groupId>
-            <artifactId>logback-classic</artifactId>
-            <version>${logback.version}</version>
-        </dependency>
     </dependencies>
 
 </project>
\ No newline at end of file
diff --git a/ranger-server-bundle/src/test/java/io/appform/ranger/server/bundle/RangerServerBundleTest.java b/ranger-server-bundle/src/test/java/io/appform/ranger/server/bundle/RangerServerBundleTest.java
index 207c0f9c..b5059bcd 100644
--- a/ranger-server-bundle/src/test/java/io/appform/ranger/server/bundle/RangerServerBundleTest.java
+++ b/ranger-server-bundle/src/test/java/io/appform/ranger/server/bundle/RangerServerBundleTest.java
@@ -45,15 +45,15 @@
 
 public class RangerServerBundleTest {
 
-    private static final JerseyEnvironment jerseyEnvironment = mock(JerseyEnvironment.class);
-    private static final MetricRegistry metricRegistry = mock(MetricRegistry.class);
-    private static final LifecycleEnvironment lifecycleEnvironment = new LifecycleEnvironment(metricRegistry);
-    private static final Environment environment = mock(Environment.class);
-    private static final Bootstrap<?> bootstrap = mock(Bootstrap.class);
-    private static final Configuration configuration = mock(Configuration.class);
+    private static final JerseyEnvironment JERSEY_ENVIRONMENT = mock(JerseyEnvironment.class);
+    private static final MetricRegistry METRIC_REGISTRY = mock(MetricRegistry.class);
+    private static final LifecycleEnvironment LIFECYCLE_ENVIRONMENT = new LifecycleEnvironment(METRIC_REGISTRY);
+    private static final Environment ENVIRONMENT = mock(Environment.class);
+    private static final Bootstrap<?> BOOTSTRAP = mock(Bootstrap.class);
+    private static final Configuration CONFIGURATION = mock(Configuration.class);
 
     private static final RangerServerBundle<TestNodeData, ListBasedServiceRegistry<TestNodeData>, Configuration>
-            rangerServerBundle = new RangerServerBundle<>() {
+            RANGER_SERVER_BUNDLE = new RangerServerBundle<>() {
 
         @Override
         protected List<RangerHubClient<TestNodeData, ListBasedServiceRegistry<TestNodeData>>> withHubs(Configuration configuration) {
@@ -68,21 +68,21 @@ protected List<HealthCheck> withHealthChecks(Configuration configuration) {
 
     @BeforeAll
     public static void setup() throws Exception {
-        when(jerseyEnvironment.getResourceConfig()).thenReturn(new DropwizardResourceConfig());
-        when(environment.jersey()).thenReturn(jerseyEnvironment);
-        when(environment.lifecycle()).thenReturn(lifecycleEnvironment);
-        when(environment.getObjectMapper()).thenReturn(new ObjectMapper());
+        when(JERSEY_ENVIRONMENT.getResourceConfig()).thenReturn(new DropwizardResourceConfig());
+        when(ENVIRONMENT.jersey()).thenReturn(JERSEY_ENVIRONMENT);
+        when(ENVIRONMENT.lifecycle()).thenReturn(LIFECYCLE_ENVIRONMENT);
+        when(ENVIRONMENT.getObjectMapper()).thenReturn(new ObjectMapper());
         val adminEnvironment = mock(AdminEnvironment.class);
         doNothing().when(adminEnvironment).addTask(any());
-        when(environment.admin()).thenReturn(adminEnvironment);
+        when(ENVIRONMENT.admin()).thenReturn(adminEnvironment);
 
         val healthCheckRegistry = mock(HealthCheckRegistry.class);
         doNothing().when(healthCheckRegistry).register(anyString(), any());
-        when(environment.healthChecks()).thenReturn(healthCheckRegistry);
+        when(ENVIRONMENT.healthChecks()).thenReturn(healthCheckRegistry);
 
-        rangerServerBundle.initialize(bootstrap);
-        rangerServerBundle.run(configuration, environment);
-        for (val lifeCycle : lifecycleEnvironment.getManagedObjects()) {
+        RANGER_SERVER_BUNDLE.initialize(BOOTSTRAP);
+        RANGER_SERVER_BUNDLE.run(CONFIGURATION, ENVIRONMENT);
+        for (val lifeCycle : LIFECYCLE_ENVIRONMENT.getManagedObjects()) {
             lifeCycle.start();
         }
     }
@@ -90,7 +90,7 @@ public static void setup() throws Exception {
 
     @Test
     void testRangerBundle() {
-        var hub = rangerServerBundle.getHubs().get(0);
+        var hub = RANGER_SERVER_BUNDLE.getHubs().get(0);
         Assertions.assertTrue(hub instanceof RangerTestHub);
         var node = hub.getNode(service).orElse(null);
         Assertions.assertNotNull(node);
@@ -105,7 +105,7 @@ void testRangerBundle() {
 
     @AfterAll
     public static void tearDown() throws Exception {
-        for (LifeCycle lifeCycle : lifecycleEnvironment.getManagedObjects()) {
+        for (LifeCycle lifeCycle : LIFECYCLE_ENVIRONMENT.getManagedObjects()) {
             lifeCycle.stop();
         }
     }
diff --git a/ranger-zk-server/config/local.yml b/ranger-zk-server/config/local.yml
index 0a09598d..793a1b29 100644
--- a/ranger-zk-server/config/local.yml
+++ b/ranger-zk-server/config/local.yml
@@ -1,13 +1,12 @@
 name: ranger-server
 
 rangerConfiguration:
-  namespace: phonepe
-  zookeeper: stg-appzk001.phonepe.nb6:2181,stg-appzk002.phonepe.nb6:2181,stg-appzk003.phonepe.nb6:2181
-  disablePushUpdaters: true
+  namespace: test
+  zookeeper: localhost:2181
 
 server:
-  maxThreads: 1024
-  minThreads: 1024
+  maxThreads: 128
+  minThreads: 128
   applicationConnectors:
     - type: http
       port: 7080
diff --git a/ranger-zk-server/pom.xml b/ranger-zk-server/pom.xml
index 0c114f94..b4a7f298 100644
--- a/ranger-zk-server/pom.xml
+++ b/ranger-zk-server/pom.xml
@@ -21,11 +21,6 @@
             <groupId>io.dropwizard</groupId>
             <artifactId>dropwizard-core</artifactId>
         </dependency>
-        <dependency>
-            <groupId>ch.qos.logback</groupId>
-            <artifactId>logback-classic</artifactId>
-            <version>${logback.version}</version>
-        </dependency>
     </dependencies>
 
 </project>
\ No newline at end of file